Technologies are generally described for processes and systems effective to select an advertisement to be displayed for viewing by participants at an event. An advertisement processor may be configured to be in communication with an advertisement database and an event status processor over a network. The advertisement processor may be effective receive event information and crowd information. The event information may relate to a status of the event. The crowd information may relate to demographics and/or interests of the participants at the event. The advertisement processor may select the advertisement based on the event information and the crowd information.
